Class: Twig::Node::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/twig/node/base.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(nodes = {}, attributes = {}, lineno = 0) ⇒ Base

Returns a new instance of Base.

Parameters:

  • nodes (Hash<Node::Base>) (defaults to: {})
  • attributes (Hash) (defaults to: {})
  • lineno (Integer) (defaults to: 0) 


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# File 'lib/twig/node/base.rb', line 25

def initialize(nodes = {}, attributes = {}, lineno = 0)
  invalid = nodes.
    values.
    detect { |node| !node.class.ancestors.include?(Node::Base) }

  raise "#{invalid.inspect} does not extend from #{Node::Base.name}" if invalid

  @nodes = AutoHash[nodes]
  @nodes.default_proc = ->(_hash, key) { raise "Node '#{key}' does not exist" }

  @attributes = attributes
  @attributes.default_proc = ->(_hash, key) { raise "Attribute '#{key}' does not exist" }

  @lineno = lineno
  @tag = nil
end

Instance Attribute Details

#attributes ⇒ Hash (readonly)

Returns:

  • (Hash) 


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# File 'lib/twig/node/base.rb', line 14

def attributes
  @attributes
end

#lineno ⇒ Integer (readonly)

Returns:

  • (Integer) 


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# File 'lib/twig/node/base.rb', line 11

def lineno
  @lineno
end

#nodes ⇒ AutoHash{[Symbol, Integer] => Node::Base} (readonly)

Returns:



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# File 'lib/twig/node/base.rb', line 20

def nodes
  @nodes
end

#source_context ⇒ Source

Returns:



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# File 'lib/twig/node/base.rb', line 17

def source_context
  @source_context
end

#tag ⇒ Object

Returns the value of attribute tag.



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# File 'lib/twig/node/base.rb', line 8

def tag
  @tag
end

Instance Method Details

#compile(compiler) ⇒ Object

Parameters:



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# File 'lib/twig/node/base.rb', line 50

def compile(compiler)
  @nodes.each_value { |node| compiler.subcompile(node) }
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/twig/node/base.rb', line 70

def empty?
  nodes.empty?
end

#length ⇒ Integer

Returns:

  • (Integer) 


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# File 'lib/twig/node/base.rb', line 66

def length
  nodes.length
end

#template_name ⇒ String

Returns:

  • (String) 


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# File 'lib/twig/node/base.rb', line 61

def template_name
  source_context.name
end

#to_s ⇒ Object 



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# File 'lib/twig/node/base.rb', line 74

def to_s
  repr = +''
  repr << self.class.name

  if @tag
    repr << "\n tag: #{@tag}"
  end

  attr = attributes.map do |name, value|
    v = if value.is_a?(Proc) || value.is_a?(Method)
          '\Closure'
        elsif value.is_a?(String)
          value
        else
          value.inspect
        end

    "#{name}: #{v}"
  end

  unless attr.empty?
    repr << "\n  attributes:\n    #{attr.join("\n    ")}"
  end

  unless empty?
    repr << "\n  nodes:"

    nodes.each do |name, node|
      len = name.to_s.length + 6
      node_repr = []

      node.to_s.each_line do |line|
        node_repr << ((' ' * len) + line.rstrip)
      end

      repr << "\n    #{name}: #{node_repr.join("\n").lstrip}"
    end
  end

  repr
end